[test-results] Stable check of asterisk failed

[asteriskteam at digium.com]

Build failed.

- https://jenkins.asterisk.org/jenkins/job/periodic-asterisk-11/552/ : UNSTABLE in 1h 44m 27s
- https://jenkins.asterisk.org/jenkins/job/periodic-asterisk-13/553/ : UNSTABLE in 3h 28m 44s
- https://jenkins.asterisk.org/jenkins/job/periodic-asterisk-14/271/ : SUCCESS in 3h 38m 24s
- https://jenkins.asterisk.org/jenkins/job/periodic-asterisk-master/555/ : UNSTABLE in 3h 11m 30s